Wargaming finally made a documentary that’s in English language, check out the trailer of the upcoming “The AC1 Sentinel Finds New Home“:

The legendary Australian Cruiser tank Mark 1 (AC1), also known as the “Sentinel”, has been making its journey back home. In the upcoming documentary, Wargaming will detail the history and journey of this rare tank, and the renovation process undertaken before it is unveiled to the public.
The only tank to be designed and mass-produced in Australia during World War II, just seven Australian Cruiser tanks remain in the world. Once in the private collection of Jacques Littlefield, the Sentinel is now housed in the Australian Armor & Artillery Museum in Cairns.
Gotta be honest, I clicked for curiosity and ended up staying for the piano piece.